Firefox 1.5 is definitely better than IE 6, which I don't even think I have to explain for that.
How about Firefox 2.0 and IE 7. Let's see. I just look at one particular feature and know I should put my chips on the Firefox side. That is the search feature (or find feature, or whatever else you call it). Firefox searches matched result while you are typing in a bar at the bottom of the window which doesn't block any content. IE pops up a stupid find dialog (which by the way hasn't been changed since the version Steve Ballmer were selling) and then only starts searching when you hit the find button. Not to mention the built-in spelling check, excellent RSS feed support, anti-phishing and all those.
BREATH! Ballmer!
